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Finding the Fourth Proportional to 18,871.52, 26,043.02 and 10,488.04

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Solution

The fourth proportional to 18,871.52, 26,043.02 and 10,488.04 is: 14,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.52 : 26,043.02 = 10,488.04 : x
  2. Step 2: Convert to fraction form
    18,871.52/26,043.02 = 10,488.04/x
  3. Step 3: Cross multiply
    18,871.52x = 26,043.02 × 10,488.04
  4. Step 4: Simplify right side
    18,871.52x = 273,140,235.48
  5. Step 5: Solve for x
    x = 273,140,235.48/18,871.52
  6. Step 6: Final answer
    x = 14,473.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.